3. The floor of a rectangular hall has a perimeter 250 m. If the cost of painting the four<br />walls at the rate of 10 per mºis 15000, find the height of the hall.<br />(Hint: Area of the four walls = Lateral surface area.]<br />25 m
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The floor of a rectangular hall has a perimeter 250 m. If the cost of painting the four<br />walls at the rate of 10 per mºis 15000, find the height of the hall.<br />(Hint: Area of the four walls = Lateral surface area.]<br />25 m
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The floor of a rectangular hall has a perimeter 250 m. If the cost of painting the four<br />walls at the rate of 10 per mºis 15000, find the height of the hall.<br />(Hint: Area of the four walls = Lateral surface area.]<br />25 m
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